code: def get_model(model_name):
      if model_name in MODEL_LIST:
          return MODEL_LIST[model_name]()
      else:
          raise ValueError(f"Model {model_name} not found.")
  
file_path: interpret-text/python/interpret_text/generative/model_lib/models.py
imports: import torch
  from transformers import AutoTokenizer, AutoModelForCausalLM, T5Tokenizer, T5ForConditionalGeneration
  from transformers import LlamaTokenizer, LlamaForCausalLM
  from openai_tooling import CompletionsOpenAI, ChatOpenAI
  from hf_tooling import HF_LM
  from accelerate import Accelerator
label_desc: Use image node_id 4 for calling a global function with example usage: get_model(model_name) and returns: MODEL_LIST